Sadly my mobo went bad and I have to build a new machine from scratch. I don't recall if I originally loaded the 32 or the 64 bit version of the OS, (K)ubuntu 14.04.
If I mount the existing HDD is there a file I can examine to determine the OS architecture? Needs to be something more than the presence of a 64bit executable or library as these are not reliable ways to determine the running OS.
I cannot run
uname -a as this is a mounted disk, not a running OS.